/Engine/Source/Editor/SequencerCore/Public/ISequencerEditTool.h
Called when a drag has ended
void OnEndDrag ( const [FPointerEvent](API\Runtime\SlateCore\Input\FPointerEvent) & MouseEvent, FVector2D LocalMousePos, const [FVirtualTrackArea](API\Editor\SequencerCore\MVVM\ViewModels\FVirtualTrackArea) & VirtualTrackArea )